Telescopic window curtain rod with self-locking function

ABSTRACT

The present invention discloses a telescopic window curtain rod with a self-locking function, comprising an outer tube and an inner tube, wherein the inner tube may be sleeved in an inner cavity of the outer tube and may slide in the length direction of the outer tube; springs are clamped at one end of the inner tube and a part of the springs extends out the inner tube, an elastic sheet is tilted between the two springs, one end of the elastic sheet is fixed on the inner side surface of the inner tube and the other end thereof is slanted to the direction of an opening; the elastic sheet is provided with a shielding sheet at the distal end away from the end surface of the inner tube, and the elastic sheet is fixedly connected with the end surface of the spring on both sides.

TECHNICAL FIELD

The present invention relates to the technical field of daily necessities, and particularly to a telescopic window curtain rod with a self-locking function.

BACKGROUND

In daily life, people often use some curtain rods to hang window curtains. Specifically, people prefer to use telescopic window curtain rods when using window curtains because the telescopic curtain rods may be randomly adjusted in length as required and may be conveniently installed at the site. A telescopic rod supported between two opposite sides by adjusting length through telescoping may be used to hang window curtains or other articles, and may be widely used in daily life because of being supported between two opposite sides on the basis of not damaging window frames (or opposite sides of door frames) and having the advantages of convenient removing and installing, simple structure and the like.

The existing products on the market are mainly divided into two types, the product of one type has a groove and slide rail function, but has a single rod, so that such product must be strictly made according to the size of a window or the distance between two walls, and is difficult to be in common use. The product of the other type is telescopic. Products of the same model may be in common use within a certain length range, for example, between 36-66 inches. The same product may be applicable depending on telescopic length. However, at present, all products of this type have no slide rail, so that circular rings are used to hang window curtains and then are sleeved outside the tube to achieve sliding.

Moreover, the existing telescopic window curtain rod mainly comprises an inner tube and an outer tube which are movably sleeved with each other and a spring, wherein the free end of each of the inner tube and the outer tube is provided with a plug coming into contact with the wall, one end of the spring is fixedly connected with the outer tube, the other end thereof is sleeved in the inner tube, and the inner tube is sleeved in the outer tube. A Chinese patent with the Patent No. of 94222621.6 provides a stainless steel telescopic rod, however, one end of a spring thereof is fixedly arranged on a fixing rod in an outer tube. The assembling procedure of the fabrication process is relatively complicated, thereby not being suitable for practical industrial production; moreover, the plug is simply designed, is not provided with plug holder matching with the right angle of a window frame (or opposite sides of the door frame), only can bear light weight, and is easy to slide and fall off A Chinese patent with the Patent No. of 200620058318.6 provides a self-pressing supporting telescopic rod, however, one end of a spring thereof is fixedly connected with an outer tube by pins, and the other end thereof is movably connected with an inner tube by pins. Similarly, the assembling procedure of the fabrication process is relatively complicated, thereby not being suitable for practical industrial production; moreover, the plug is simply designed, is not provided with plug holder matching with the right angle of a window frame (or opposite sides of the door frame), only can bear light weight, and is easy to slide and fall off In addition, swing may be caused if there is a gap between the outer tube and the inner tube.

SUMMARY

To solve the above-mentioned problem, the present invention provides a telescopic window curtain rod with a self-locking function, which is simple in structure, convenient and practical, can be freely telescoped and adjusted, and has a self-locking function.

To achieve the above purpose, the present invention adopts the following technical solution:

A telescopic window curtain rod with a self-locking function, comprising an outer tube having a hollow inner cavity and an opening on one side, and an inner tube, wherein the inner tube may be sleeved in the inner cavity of the outer tube and may slide in the length direction of the outer tube; springs are clamped between two sides of one end of the inner tube and a part of the springs extends out the end surface of the inner tube, an elastic sheet is tilted between the two springs, one end of the elastic sheet is fixed on the inner side surface of the inner tube relative to the opening, and the other end thereof is slanted to the direction of the opening; the elastic sheet is provided with a shielding sheet at the distal end away from the end surface of the inner tube, and the elastic sheet is fixedly connected with the end surfaces of the springs on both sides.

The present invention has the principle that the inner tube may be sleeved in the inner cavity of the outer tube and may slide leftwards and rightwards in the length direction of the outer tube, thus achieving telescopic adjustment of the window curtain rod; unidirectional self-locking between the inner tube and the outer tube is achieved by the combination between the springs of the end surface of the inner tube and the elastic sheet, the elastic sheet is tilted so that the shielding sheet is closely attached to the inner side surface of the opening of the outer tube, when the springs are compressed, the elastic sheet and the shielding sheet are deformed and are closely attached to the inner side surface of the opening of the outer tube, so that the shielding sheet has a component of force that is pressed against the inner side surface of the opening, thereby achieving self-locking; and when the springs are elongated or are not deformed, each of the elastic sheet and the shielding sheet has no component of force that is pressed against the inner side surface of the opening of the outer tube, thus having no influence on the relative sliding between the inner tube and outer tube; and when the inner tube is pushed into the outer tube, the springs are slightly compressed and deformed, the elastic sheet and the shielding sheet are deformed and are closely attached to the inner side surface of the opening of the outer tube, so that the shielding sheet has a component of force that is pressed against the inner side surface of the opening, thereby achieving self-locking.

As improvement of the technical solution, the shielding sheet is fixedly connected or welded with the elastic sheet together, spring guide posts are arranged on both sides of the shielding sheet, and the springs are sleeved on the spring guide posts.

As improvement of the technical solution, the cross section of each of the inner tube and the outer tube is oval, the opening is provided at the straight edge of the outer tube and the inner tube, and the outer tube and the inner tube are provided with guide ribs outwards protruding in the lengthwise direction on both sides of the opening. Thus, when the inner tube is sleeved in the inner cavity of the outer tube, the sliding fit between the inner tube and the outer tube may be guaranteed, and swing may not be caused while guaranteeing sliding.

As improvement of the technical solution, the telescopic window curtain rod also comprises a hanging pendant arranged at the opening of the outer tube or the inner tube and sliding in the length direction of the outer tube or the inner tube, the hanging pendant comprising a lower ear accessory having a through hole and an upper eardrop having an upper tower, wherein the upper eardrop is provided with two annular grooves, and the annular grooves are adapted to the width of the opening of the outer tube or the inner tube.

As improvement of the technical solution, the lower ear accessory is integrated with the upper eardrop.

As improvement of the technical solution, the telescopic window curtain rod also comprises a horizontal support, the horizontal support including a horizontal fixed plate, a horizontal rod connected below the horizontal fixed plate and a ring support connected below the horizontal rod and provided with an opening, wherein the cross-sectional shape of the ring support is adapted to the outer tube or the cross-sectional shape of the outer tube.

As improvement of the technical solution, the telescopic window curtain rod also comprises a vertical support, the vertical support including a vertical fixed plate, wherein a ring support is fixedly arranged at the front end of the vertical fixed plate, and the cross-sectional shape of the ring support is adapted to the outer tube or the cross-sectional shape of the outer tube.

As improvement of the technical solution, the telescopic window curtain rod also comprises decorative rod heads arranged at both ends, the decorative rod heads including a decorative ball and a decorative ring connected with the decorative ball, wherein the decorative ring is annular and is adapted to the cross-sectional shape of the outer tube or the inner tube.

Compared with the prior art, the present invention may have the following advantages and positive effects:

The telescopic window curtain rod with a self-locking function of the present invention has a unidirectional self-locking function while telescopic adjustment is achieved. When the telescopic window curtain rod is installed in various occasions, such as different rooms, according to the sizes of the rooms, the inner tube located in the outer tube is pulled for adjustment. The length of the whole window curtain rod is adapted to the sizes of the rooms. After adjustment is completed, because the telescopic window curtain rod has the unidirectional self-locking function, the inner tube may not draw back and cause length change of the window curtain rod. The horizontal support and the vertical support can realize horizontal connection and fixed connection between the window curtain rod and the wall, and can guarantee safety and stability of the window curtain rod. The decorative rod heads are located at two ends of the window curtain rod and can be butted against two side surfaces of the room to avoid that the outer tube or the inner tube is butted against the wall surface.

Another important function is that, if the product is used between two planes (such as two walls), tool-free installation may be realized, and the product is pressed backwards directly through the unidirectional sliding function of the springs to fix the product between the two walls through the elasticity of the springs. The function is mainly used for a shower curtain rod. Therefore, both ends of the shower curtain rod come into contact with the walls, and are flat tube caps.

If the product is used as the window curtain rod, decorative rod heads are arranged at both ends, while the supports are used as a fixation mode. There are two kinds of supports. The support with a post is used for the vertical wall, and needs screws for drilling and installation. The support with an iron sheet is used for ceiling installation. Different installation modes are used according to different needs of customers.

DESCRIPTION OF DRAWINGS

To more clearly describe the technical solutions in the embodiments of the present invention or in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be simply presented below. Obviously, the drawings in the following description are merely some embodiments of the present invention, and for those skilled in the art, other drawings can also be obtained according to the drawings without contributing creative labor.

FIG. 1 is a structural schematic diagram of the present invention.

FIG. 2 is an amplified structural schematic diagram of a self-locking structure the present invention.

FIG. 3 is a view of A-A direction of FIG. 2.

FIG. 4 is a structural schematic diagram of a vertical support the present invention.

FIG. 5 is a structural schematic diagram of a hanging pendant of the present invention.

DETAILED DESCRIPTION

The technical solution in the embodiments of the present invention will be clearly and fully described below in combination with the drawings in the embodiments of the present invention. Apparently, the described embodiments are merely part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, any modification, equivalent replacement and improvement made to all other embodiments obtained by those ordinary skilled in the art without contributing creative labor will be included in the protection scope of the present invention.

As shown in FIG. 1 to FIG. 5, a telescopic window curtain rod with a self-locking function of the present invention comprises an outer tube 1 having a hollow inner cavity and an opening on one side, and an inner tube 2, wherein the inner tube 2 may be sleeved in the inner cavity of the outer tube 1 and may slide in the length direction of the outer tube 1; springs 3 are clamped between two sides of one end of the inner tube 2 and a part of the springs extends out the end surface of the inner tube 2, an elastic sheet 4 is tilted between the two springs 3, one end of the elastic sheet 4 is fixed on the inner side surface of the inner tube 2 relative to the opening, and the other end thereof is slanted to the direction of the opening; the elastic sheet 4 is provided with a shielding sheet 5 at the distal end away from the end surface of the inner tube, and the shielding sheet 5 is fixedly connected with the end surfaces of the springs 4 on both sides.

The present invention has the principle that the inner tube 2 may be sleeved in the inner cavity of the outer tube 1 and may slide leftwards and rightwards in the length direction of the outer tube 1, thus achieving telescopic adjustment of the window curtain rod; unidirectional self-locking between the inner tube 3 and the outer tube 1 is achieved by the combination between the springs 3 of the end surface of the inner tube 2 and the elastic sheet 4, the elastic sheet 5 is tilted so that the shielding sheet 5 is closely attached to the inner side surface of the opening of the outer tube 1, when the springs 3 are compressed, the elastic sheet 4 and the shielding sheet 5 are deformed and are closely attached to the inner side surface of the opening of the outer tube 1, so that the shielding sheet 5 has a component of force that is pressed against the inner side surface of the opening, thereby achieving self-locking; and when the springs 3 are elongated or are not deformed, each of the elastic sheet 4 and the shielding sheet 5 has no component of force that is pressed against the inner side surface of the opening of the outer tube, thus having no influence on the relative sliding between the inner tube 3 and the outer tube 1; and when the inner tube 3 is pushed into the outer tube 1, the springs 3 are slightly compressed and deformed, the elastic sheet 4 and the shielding sheet 5 are deformed and are closely attached to the inner side surface of the opening of the outer tube 1, so that the shielding sheet 5 has a component of force that is pressed against the inner side surface of the opening, thereby achieving self-locking.

The shielding sheet 5 is fixedly connected or welded with the elastic sheet 4 together, spring guide posts 6 are arranged on both sides of the shielding sheet 4, and the springs 3 are sleeved on the spring guide posts 6.

The cross section of each of the inner tube 2 and the outer tube 1 is oval, the opening is provided at the straight edge of the outer tube 1 and the inner tube 2, and the outer tube 1 and the inner tube 2 are provided with guide ribs 7 outwards protruding in the lengthwise direction on both sides of the opening. Thus, when the inner tube 2 is sleeved in the inner cavity of the outer tube 1, the sliding fit between the inner tube 2 and the outer tube 1 may be guaranteed, and swing may not be caused while guaranteeing sliding.

The telescopic window curtain rod also comprises a hanging pendant 8 arranged at the opening of the outer tube 1 or the inner tube 2 and sliding in the length direction of the outer tube or the inner tube, the hanging pendant 8 comprising a lower ear accessory 801 having a through hole and an upper eardrop 802 having an upper tower, wherein the upper eardrop 802 is provided with two annular grooves 803, and the annular grooves 803 are adapted to the width of the opening of the outer tube 1 or the inner tube 2. The lower ear accessory 801 is integrated with the upper eardrop 802.

The telescopic window curtain rod also comprises a horizontal support 9, the horizontal support 9 including a horizontal fixed plate 901, a horizontal rod 902 connected below the horizontal fixed plate 901 and a ring support 903 connected below the horizontal rod 902 and provided with an opening, wherein the cross-sectional shape of the ring support 903 is adapted to the outer tube 1 or the cross-sectional shape of the outer tube 2.

The telescopic window curtain rod also comprises a vertical support 10, the vertical support 10 including a vertical fixed plate 101, wherein with a ring support 102 is fixedly arranged the front end of the vertical fixed plate 101, and the cross-sectional shape of the ring support 102 is adapted to the outer tube or the cross-sectional shape of the outer tube.

The telescopic window curtain rod also comprises decorative rod heads 11 arranged at both ends, the decorative rod heads 11 including a decorative ball 111 and a decorative ring 112 connected with the decorative ball 111, wherein the decorative ring 112 is annular and is adapted to the cross-sectional shape of the outer tube 1 or the inner tube 2.

The telescopic window curtain rod with the self-locking function of the present invention has a unidirectional self-locking function while telescopic adjustment is realized. When the telescopic window curtain rod is installed in various occasions, such as different rooms, according to the sizes of the rooms, the inner tube located in the outer tube is pulled for adjustment. The length of the whole window curtain rod is adapted to the sizes of the rooms. After adjustment is completed, because the telescopic window curtain rod has the unidirectional self-locking function, the inner tube may not draw back and cause length change of the window curtain rod. The horizontal support and the vertical support can realize horizontal connection and fixed connection of the window curtain rod and the wall, and can guarantee safety and stability of the window curtain rod. The decorative rod heads are located at two ends of the window curtain rod and can be butted against two side surfaces of the room to avoid that the outer tube or the inner tube is butted against the wall surface.

Another important function is that, if the product is used between two planes (such as two walls), tool-free installation may be realized, and the product is pressed backwards directly through the unidirectional slide function of the springs to fix the product between the two walls through the elasticity of the springs. The function is mainly used for a shower curtain rod. Therefore, both ends of the shower curtain rod come into contact with the walls, and are flat tube caps.

If the product is used as the window curtain rod, decorative rod heads are arranged at both ends, while the supports are used as a fixation mode. There are two kinds of supports. The support with a post is used for the vertical wall, and needs screws for drilling and installation. The support with an iron sheet is used for ceiling installation. Different installation modes are used according to different needs of customers. 

What is claimed is:
 1. A telescopic window curtain rod with a self-locking function, characterized by comprising: an outer tube having a hollow inner cavity and an opening on one side, and an inner tube, wherein the inner tube may be sleeved in the inner cavity of the outer tube and may slide in the length direction of the outer tube; springs are clamped between two sides of one end of the inner tube and a part of the springs extends out the end surface of the inner tube, an elastic sheet is tilted between the two springs, one end of the elastic sheet is fixed on the inner side surface of the inner tube relative to the opening, and the other end thereof is slanted to the direction of the opening; the elastic sheet is provided with a shielding sheet at the distal end away from the end surface of the inner tube, and the elastic sheet is fixedly connected with the end surfaces of the springs on both sides.
 2. The telescopic window curtain rod with a self-locking function of claim 1, characterized in that: the shielding sheet is fixedly connected or welded with the elastic sheet together, spring guide posts are arranged on both sides of the shielding sheet, and the springs are sleeved on the spring guide posts.
 3. The telescopic window curtain rod with a self-locking function of claim 2, characterized in that: the cross section of each of the inner tube and the outer tube is oval, the opening is provided at the straight edge of the outer tube and the inner tube, and the outer tube and the inner tube are provided with guide ribs outwards protruding in the lengthwise direction on both sides of the opening.
 4. The telescopic window curtain rod with a self-locking function of claim 3, characterized in that: the telescopic window curtain rod also comprises a hanging pendant arranged at the opening of the outer tube or the inner tube and sliding in the length direction of the outer tube or the inner tube, the hanging pendant comprising a lower ear accessory having a through hole and an upper eardrop having an upper tower, wherein the upper eardrop is provided with two annular grooves, and the annular grooves are adapted to the width of the opening of the outer tube or the inner tube.
 5. The telescopic window curtain rod with a self-locking function of claim 4, characterized in that: the lower ear accessory is integrated with the upper eardrop.
 6. The telescopic window curtain rod with a self-locking function of claim 4, characterized in that: the telescopic window curtain rod also comprises a horizontal support, the horizontal support including a horizontal fixed plate, a horizontal rod connected below the horizontal fixed plate and a ring support connected below the horizontal rod and provided with an opening.
 7. The telescopic window curtain rod with a self-locking function of claim 4, characterized in that: the telescopic window curtain rod also comprises a vertical support, the vertical support including a vertical fixed plate, wherein a ring support is fixedly arranged at the front end of the vertical fixed plate.
 8. The telescopic window curtain rod with a self-locking function of claim 4, characterized in that: the telescopic window curtain rod also comprises decorative rod heads arranged at both ends, the decorative rod heads including a decorative ball and a decorative ring connected with the decorative ball, wherein the decorative ring is annular and is adapted to the cross-sectional shape of the outer tube or the inner tube. 